9ct Yellow Gold Blue John Marquise Necklace, P388. This Art Nouveaux style necklace features a stunning Marquise shaped cabochon of the finest natural Derbyshire Blue John gemstone. Inspired by the 1920\'s, this vintage style pendant holds the Blue John stone between two flicks of 9ct yellow gold descending from the bail, giving a natural leaf bud look. Sold complete with an 18 inch 9ct yellow gold chain which fastens with a classic bolt ring style clasp. All our Blue John jewellery is designed and crafted within our very own workshops in Ashbourne, Derbyshire where a team of skilled craftsmen transform natural pieces of Blue John into these stylish pieces of jewellery. You can find other matching Blue John jewellery on our website. All articles purchased from C W Sellors are lovingly and securely dispatched with our elegant jewellery packaging.  Dimensions: 29mm x 10mm including bail, Blue John; 15mm x 8mm